16394180940804 has 12 divisors (see below), whose sum is σ = 38253088861904. Its totient is φ = 5464726980264.

The previous prime is 16394180940793. The next prime is 16394180940827. The reversal of 16394180940804 is 40804908149361.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×16394180940804² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683090872522 + ... + 683090872545.

Almost surely, 2^{16394180940804} is an apocalyptic number.

It is an amenable number.

16394180940804 is an abundant number, since it is smaller than the sum of its proper divisors (21858907921100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16394180940804 is a wasteful number, since it uses less digits than its factorization.

16394180940804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366181745074 (or 1366181745072 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 57.

The spelling of 16394180940804 in words is "sixteen trillion, three hundred ninety-four billion, one hundred eighty million, nine hundred forty thousand, eight hundred four".